For liquids
NIVOPOINT
O U R
P R O F E S S I O N
I S
Y O U R
L E V E L
L E V E L
S W I T C H E S
M A G N E T I C F LO AT L E V E L S W I TC H E S
O
U
R
P
R
O
F
E
S
S
I
O
N I VO P O I N T M A G N E T I C F LO AT L E V E L S W I TC H E S M A I N F E AT U R E S
A P P L I C AT I O N S
Level switching without auxiliary power Maximum 5 switching points Stainless steel and plastic coated versions 150 °C medium temperature Mini version Wide variety of floats ATEX version
Multipoint level switching For controlling pumps, valves Level detection of aggressive liquids Level switching of explosive liquids
Standard type
GENERAL DESCRIPTION
MR biased C
1
O P E R AT I O N
MZ not biased
2
S N NO
NO
N
N S
N
N
S
S NC
DIMENSIONS Standard type
Mini type
NIVOPOINT magnetic float level switches are suitable for level detection, level switching and one- or multipoint level controlling tasks in normal as well as in hazardous areas. The device consists of a probe tube, a float incorporating a magnet and a housing containing the connection terminals. A maximum of 5 switches can be incorporated in the probe. A sliding sleeve on the top of the probe provides for a simultaneous ±25 mm adjustment possibility of the positioning of the switches. The wetted parts of the level switch are made of stainless steel. The plastic coated versions are suitable for level detecting of aggressive liquids, and the ATEX certified versions are applicable for level switching of explosive materials. Floats and process connections can be selected according to the measured medium and the application. The mini type NIVOPOINT magnetic float level switches are suitable for maximum level indication in small tanks. The small size and easy mounting of the switch allows maximum level detection in appliances or tanks using process connections made for different other purposes.
S
NIVOPOINT magnetic float level switches work on the basis of the interaction of the built-in magnet in the float and the reed switches in the probe. The float of NIVOPOINT level switch devices moves alongside the probe tube tracking the level of the measured liquid and activating the reed switches. When the float moves ahead the reed switches, it changes the default state (NO or NC) of the reed switches, which stay in self-holding state with the help of opposite polarized magnets next to the reed switches. When the liquid level decreases, the float moves ahead the reed switches again, breaks off the self-holding state and restores the previous state of the reed switches. The mini type NIVOPOINT level switches do not contain biasing magnets. By tracking the level, the magnetic float activates the reed switch in the probe. The reed switch opens or closes according to the position of the magnetic float. The default state is meant with bottom positioned float, the normally opened or closed state of the reed switch can be changed by the inversion of the float.
Plastic coated type
Ex version
Mini type 1/4” BSP
2” BSP
N
I
S
Y
O
U
R
L
E
V
E
L
T E C H N I C A L DATA Standard type
Plastic coated type
1.4404 float / 1.4571
PVDF or PP float / PFA coated guiding tube
Max. process pressure
2.5 MPa (25 bar)
0.5 MPa (5 bar)
Min. medium density
0.8 kg/dm3
0.4 / 0.7 kg/dm3
Type Insertion length
Explosion-proof type
Mini type
0.25 m ... 3 m
Material of wetted parts
Float sizes
0.1 m ... 0.5 m 1.4404 float / 1.4571
1.4404 float / 1.4571
2.5 MPa (25 bar) 0.8 kg/dm3
0.8 kg/dm3
see: float selection table
Medium temperature
-40 °C...+150 °C
Ambient temperature
-40 °C...+80 °C
-40 °C...+100 °C
-40 °C ... +120 °C
see: temperature data for Ex versions table
-20 °C ... +70 °C
1…5 pcs reed-switches, one connecting point of each is common, NO/NC
1…3 pcs reed-switches, NO or NC depending on float orientation
Switching rate
120 W / VA, 250 V AC/DC, 3 A / reed relay, summary max. 9 A
120 W/VA 250 V AC/DC max. 3 A
Switching point
see: auxiliary data of the order codes table
40 mm ± 3 mm from the bottom of the protection tube
Output
Switching differential
< 10 mm
Dist. between reed-switches
Minimum 110 mm Cable gland M 20x1.5, cable outer Ø: 6…12 mm
Electrical connection
Cable gland M 20x1.5, cable outer Ø: 9.5…10 mm
0.5 m long*, 2 x 0.75 mm2 cable with silicon sealing (outer Ø: 5 mm)
terminal, 0.5 … 2,5 mm2 wire cross section Process connection
as per order code
Gasket
Klingerit
–
Electrical protection
Klingerit Class I.
Ingress protection
Class II.
IP 65
Certifications
IP 68 II 2 G EEx d IIC T3…T6
–
Bureau Veritas
Dimension of the housing
116 x 80 x 65 mm
124 x 80 x 65 mm
–
Mass
0.4 kg + 0.3 kg/fm
0.45 kg + 0.3 kg/fm
0.15 kg + cable: 0.05 kg/fm
* available to order with different cable length
F LO AT S E L E C T I O N Type
MRC-105-7M-600 MRC-105-7M-700
MRC-105-7M-800
MPP-105-3M-200 MPP-105-3M-900
MZS-101-3M-700 (1)
Dimensions
(2)
Standard type
(2)
Plastic type (2)
Ex type Mini type Medium density (min.)
0.8 kg/dm3
Material
0.4 kg/dm3
1.4404
Medium pressure
(1) Mini type
0.55 kg/dm3
2.5 MPa (25 bar)
1.6 MPa (16 bar)
2.5 MPa (25 bar)
(2) Standard float, can be ordered with different float as per the float selection table
0.7 kg/dm3
0.4 kg/dm3
PVDF
PP
0.6 MPa (6 bar)
0.3 MPa (3 bar)
Class
Nivelco reserves the right to change technical data without notice!
mrc1s11a0604b
TEMPERATURE DATA FOR EX VERSIONS
WIRING
T6
T5
T4
T3
Max. ambient temperature from –20 °C
+80 °C
+95 °C
+85 °C
+70 °C
Max. medium temperature from –20 °C
+85 °C
+100 °C +135 °C +150 °C
I N S TA L L AT I O N A NIVOPOINT level switch equipped with Ø52 mm cylindrical float can be installed into the tank through a 2" BSP process connection. Units with larger floats need to be flanged unless a mounting of the float by accessing the interior of the tank is allowed. Mini type level switches may feature 1/4" BSP or 2" BSP connections. These level switches are to be mounted into a tank from inside and fixed with a nut from outside.
O R D E R C O D E S ( N OT
A L L C O M B I N AT I O N S A V A I L A B L E )
NIVOPOINT magnetic float level switches NIVOPOINT M – – Type
Switch(5)
Code
Standard
R
Plastic
P (2)
Code
1 pc NO / NC
Process conn. (3)
Code
Code Insertion length Code
1
0
0m
2
1
1m
0.1 m
1
3 pcs NO / NC
3
2
2m
0.2 m
2
3
3m
0.3 m
3
0.4 m
4
0.5 m
5
0.6 m
6
0.7 m
7
0.8 m
8
0.9 m
9
4 pcs NO / NC
4
A
5 pcs NO / NC
5
2” BSP
C
Floats
1” NPT
D
2” NPT
G
DN 80 PN 16 PP / DIN
P (4)
MRC-105-7M-600-00
Ø 52 mm / 1.4404
DN 100 PN 16 PP / DIN
R (4)
MRC-105-7M-700-00
Ø 92 mm / 1.4404
MRC-105-7M-800-00
Ø 124 mm / 1.4404
MPP-105-3M-200-00
Ø 76 mm / PVDF
MPP-105-3M-900-00
Ø 76 mm / PP
MZS-101-3M-700-00
Ø 52 mm / 1.4404
Standard / Material
– Code
DIN / Carbon steel DIN / 1.4571
Type
1 2
Diam. / Material
Size Code DIN/ANSI
Pressure DIN/ANSI
DN 100 / 4”
PN 25 / 300 psi
3
DN 125 / 5”
Code 2
4
Inner Code size 1” BSP 2” BSP
2 3
1” NPT
5
ANSI / 1.4571
6
2” NPT
6
NIVOPOINT magnetic float level switches (Mini type) NIVOPOINT M – 0 –
Mini type
Z
Connection
Code
Switch
L1 (1)
… mm
L2
… mm
L3
… mm
L4
… mm
L5 (2)
… mm
(1) (2) (3) (4)
7
Default oper. mode (4) NO
NC
Code
Insertion length
Code
Float
Code
Ø 52
3
S
1 pc NO / NC
1
0.1 m
1
C
2 pcs NO / NC
2
0.2 m
2
3 pcs NO / NC
3
0.3 m
3
0.4 m
4
0.5 m
5
T E L . : ( 3 6 - 1 ) 8 8 9 - 0 1 0 0 u FA X : ( 3 6 - 1 ) 8 8 9 - 0 2 0 0 E -mail: sales@nivelco.com http://www.nivelco.com
(6)
L-L1 > 80 mm, L= insertion length L5 > 85 mm Min. distance of the switching points: 110 mm. Default operation mode (NO/NC) is meant with bottom positioned float.
2” BSP
H - 1 0 4 3 B U D A P E S T , D U G O N I C S U . 1 1.
3
Ø 52 / Ex
¼” BSP
NIVELCO PROCESS CONTROL CO.
Code
(1) The order code of an Ex version should end in „Ex” (2) Not available in Ex version (3) See: flanges selection (4) Only for plastic version instruments (5) The order should contain the positions of the switching points and the default operation mode (NO/NC) as per filling the auxiliary data table. Special versions can be ordered with multiple, independent contacts. The limit of the terminal points is 6. (6) Depends on the order: as per the float selection table
Switching point (3)
5
Code
(6)
Auxiliary Data
ANSI / Carbon steel
Type
Float / Ex Ø 52
0
2 pcs NO / NC
1” BSP
Flanges: MFT–
0m